Contact Us
Sign In / Sign Up for FREE
Go to advanced search...

Article - Assignment Example

Comments (0) Cite this document
The purpose is also to determine in what way ratio and proportions should be taught in the 6th -8th grade.
The type of research design used is systematic…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER98.2% of users find it useful
Read TextPreview

Extract of sample "Article"

Article Critique 2 AN EXPERIMENT IN TEACHING RATIO AND PROPORTION What is the purpose of the study? The purpose of the study is to determine what grade level is best fit for students to learn about ratio and proportions. The purpose is also to determine in what way ratio and proportions should be taught in the 6th -8th grade.
2. What type of research design is used (must use classification of designs in chapter 11)?
The type of research design used is systematic classification under the experimental design. It allows for pupils to work systematically in order to achieve better results. The physical and the mathematical interpretation is expanded in both experiments in order to magnify the outcome. The experimental design allows for active dependents to help determine internal validity.
3. How does the research design control for the following threats* to internal validity:
a. Selection: Depending on the two classes chosen, the demographics of the school itself can greatly influence the outcome of the experiment due to goals. Both classes belonged to a small public secondary school. Depending on who the subjects are, the outcome could be seen as different.
b. Maturation: This could change during the course of the experiment due to children getting older and more mature and therefore, are able to handle concepts more easily.
c. Mortality: The dropping out of subjects can lead to an overall attrition but should not have an impact on the internal validity of the experiment. As long as the control group is consistent within the rest of the experiment, people dropping out only lessons the subject amount and not the quality of the subjects.
d. Regression: This has to do with aiming towards to average. The people with the lowest score aim to get a higher mark because they can only “get better”. Instead of looking at it from and “improvement” standpoint, it is important to view the subjects as making gradual strides to improve instead of an obvious jump.
e. Testing: If you repeatedly test a student, this could easily lead to a bias that causes change within the experiment. Subjects may remember the correct answer from previous questions and therefore, they are not coming from an unbiased perspective but instead, using memory to help them get through. Also, sometimes too much testing does not give enough room for actual growth.
f. Instrumentation: Depending on what instruments or manipulatives is used during the experiment, the outcome can be different. The Partial experiment is different from the full experiment due to its implementations.
g. History: History can affect the outcome because students are affected every day by their environment and therefore, without the control of the variables, nothing is consistent. This can greatly affect the experiment as history changes perspective.
*If any of these threats are not a credible concern in the study, explain why.
4. What are findings of the study (be brief)?
The findings of the study are that the pupils involved in the “full experiment” and the partial experiment scored differently due to exposure of manipulatives and instrumentation. The full experiment done is more suited for the “educated” population rather the 7th grade norm population. The Partial Experiment was more prevalent to the regular 7th grade population.
5. Is the study internally valid? Why or why not? The study is internally valid because it deals more with things that can be controlled such as selection, history, maturity and instrumentation.
6. Is the study externally valid? Why or why not? This study has external validity because it includes pre-test and post test, situation specific observations, and it plays greatly off the independent variables.
Works Cited
Pluvinage, R. A. (2007, June 3/4/2012). An Experiment in Teaching Ratio and Proportion. Educational Studies in Mathematics, Vol.65, No 2, pp. 149-175.
Note: Please respond only to the questions posted. Do not include in your response any statistical results. Follow APA style in formatting: Times New Roman font, 12, black. Read More
Cite this document
  • APA
  • MLA
(“Article Assignment Example | Topics and Well Written Essays - 250 words”, n.d.)
Article Assignment Example | Topics and Well Written Essays - 250 words. Retrieved from
(Article Assignment Example | Topics and Well Written Essays - 250 Words)
Article Assignment Example | Topics and Well Written Essays - 250 Words.
“Article Assignment Example | Topics and Well Written Essays - 250 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document



...?   ArticleArticle Ross, T, & Kena, G Higher education: gaps in access and persistence study, National Center for Education Statistics. Retrieved from The report is a valid resource in the academic community. This is because it is a statistical analysis report developed by the National Center for Education Statistics, which is the central federal entity for gathering, assessing, and reporting information associated with education in America and other nations. The report satisfies the congressional authorization to gather, assemble, and report complete and full data on the situation of education in America; publish and conduct report and specific assessments of the significance and meaning...
4 Pages(1000 words)Article


... 15 October, Hybridization: Hybridization is essentially the mating of two differentspecies to give rise to a third that has mixed characteristics from both of the parent species. Although, different species of living beings generally do not mate with one another, yet there are over 10% and 25% of animal and plant species respectively that have a capacity to breed outside their own species. (Carroll, 2010). Despite the fact that such species in animals and plants have been identified, there are mixed views about the usefulness of the third species and the ethical considerations of the practice of inter-breeding of species. This paper evaluates various positive and negative aspects of hybridization in the following sections... 15 October,...
2 Pages(500 words)Assignment


.... Countries whose economies are heavily dependent on exports to the United States such as Mexico, Caribbean as well as Central American countries and Asian economies are feeling and will continue to feel the spillover effects of the United States slowdown. However, the strong growth in domestic demand will sustain their GDP growth in addition to the rising demands for raw materials by key emerging markets economies, mostly China, will help commodity prices strong and boast growth in many other emerging markets. Global Prospects Impacts on Strategic Management. The article has covered chiefly the expectations and possibilities of what the author in his viewpoint foresees as being the case in the years 2008 and 2009. The information outlined...
2 Pages(500 words)Article


...Object Recognition Object Recognition In seeking to know why mislocation errors are more infrequent than intrusion errors with strings of relatively familiar signs and symbols, Garvin Chastain (1995) undertook two experiments. The bone of contention was that while error in reporting a postcued target in a string of various letters usually involved a letter appearing elsewhere in the string than the one not appearing in the string, mislocation errors were still not more common than intrusion ones (Chastain, 1995). In the first experiment, Chastain selected one exposure duration for every subject that yielded an overall proportion correct of approximately .55 with regard to letters, and roughly .55 for forms. In order to come... Recognition...
1 Pages(250 words)Essay


... 12 November Summary: Nutraceuticals and the Parkinson’s disease Parkinson’s disease is caused by the degenerative reduction of dopaminergic neurons (Chao et al.). Manifold studies point out the fundamental role of “misfolded proteins such as beta-amyloid and a-synuclein” (Forloni et al.) in Parkinson’s disease. Transmutation of the molecular marker “a-synuclein”, while believed to cause Parkinsonism, is seldom present in patients with Parkinson’s disease. While aging is considered a major risk factor of Parkinsons disease, several environmental factors have also been discovered as contributing factors to Parkinsons disease morbidity (Chao et al.). The most common environmental factors are toxins and exposure to pesticides. Toxic...
2 Pages(500 words)Research Paper


... Declaration of independence Question Jefferson refers to the free will of the people and the natural occurrences that have taken place during that period as the laws of nature. It is the free will from the thirteen states since there is no force from men but a natural control that puts things in place. Question #2 The function of the Government is to uphold human rights especially right to life, liberty and the pursuit of happiness. The Government should serve its people that put it to power. It needs to safe guard the nation ensuring the security for the future generations. Question #3 Jefferson seems to favor equality of all whether man or woman. His sentiments do not support a patriarchal system since he recognizes that God... Declaration...
1 Pages(250 words)Article

Article of the research would be determining the prevalence of the problem among American mothers and their daughters. The variables defined for the first hypothesis would be hypertension and American mothers and their daughters. The population of the research which includes African mother and their daughter would be the independent variable, while the occurrence of hypertension would be the dependent variable. The second dependent variable would be identified as the prevalence of hypertension among the population. The article has utilises many secondary sources compared to primary sources within the reference. The ration of primary to secondary sources of information is relatively high based on the regard of the research. The ratio of...
6 Pages(1500 words)Admission/Application Essay


... will deliver a ruling in her favor. The main theme being addressed in the article is the theme of corruption which is well spread in the entire society. It is being advocated and propagated by those in high places. The courts that are expected to deliver fair judgment have fallen short of the expectation. Inequality is very rampant in the society and justice is based on what one can offer to the high authorities.... Article: In Chancery The article seeks to describe the situation in the of London based on the day to day activities of the city. The city’s busy street are marred will all manner of events despite the fact that it is already late in the afternoon. Movements of both people and animals are...
1 Pages(250 words)Research Paper


...-in case distribution also aids in reducing the cost of transportation since shipping of goods is on demand. The article asserts that the just-in-case plan was a response to the vulnerable just-in-time supply chains. The article notes that just-in-time management exposes companies to a greater risk of running out of merchandise in case of disruptions. Indeed, the article reckons that combining the just in case with just-in-time strategy was a means of seeking to a balance between holding the minimum inventory possible and yet never running out of stock. The just-in case just-in time distribution strategy expands and increases the network of distribution centers hence reducing the distance by moving the inventory more close to the customers...
2 Pages(500 words)Essay


... Discussion project and Project #2 The project for funding usually follow a format and the content should be comprehensive to capture the reader’s attention for funding. The two proposals: Sample energy Grant: Hi Energy Exploration kit #1 and Water Resources: Rivers and Anthropogenic Impact #2, I would fund project #2 because the problem is well stated and captivating the proposed solution is simple and clear for implementation. The project also addresses the immediate need of the community dealing with water, a basic need for life as compared to energy. One does not appear viable than the other but one address the matter that directly affect life as compared to the other one. In the two projects #1 and #2 the problem is well... Discussion...
2 Pages(500 words)Article

Critique of Research Article Moral Problems Among Dutch Nurses: A Survey by Arie JG van der Arend

... sectional designed questionnaire. Because they considered that not theoretical framework was available to meet their exact needs, they developed and test their own tool. The processes involved suggested a thorough approach that would result in meaningful data, and included review of the literature, panel discussion, participation, observation and interviews, pilot study and main study. Review of the Literature: In the context of the study, reviewing existing literature was an important factor in deciding the thrust of the investigation and what should be included in the questionnaire. This section of the article gave good background to aid understanding of the differences that existed between theoretical principles and ethical...
12 Pages(3000 words)Term Paper

Rewiev of the Article: Management of Type 2 Diabetes

...sampling strategy is comprehensively described and soundly related to the purposes of the study. The authors also admitted under-representation of the very elderly patients. The process of data collection is not described in great details. However, the authors provide a synthesis of their findings using a lot of quotes so that the reader could have a sense of personal involvement in the issue being studied. The quotes highlight the most important elements of the research and strongly support the overall argument of the article. The researchers’ careful treatment of collected qualitative data is vividly illustrated by the statement that ‘quotes presented in the paper have been selected as typical of the perceptions and experiences...
8 Pages(2000 words)Case Study

Critique of Technological Innovations, Activity Based Costing and Satisfaction Article by Davood Askarany

Many of the innovations have been introduced as early as 1980, such as “activity-based costing (ABC); activity management (AM) and activity-based management (ABM); local information system (LS); balanced scorecard (BS); life cycle costing (LCC) and target costing (TC) [and] strategic management accounting (SMA).” (Askarany, Smith and Yazdifar 54). However, few of these have been implemented and utilized to their full potential. The authors propose to find a reason for this.

ABC focuses on costs associated with activities, but also evaluates whether those activities add value, thus providing a means of understanding how to most effectively reduce costs. In addition to cost reduction benefits, applying ABC giv...
7 Pages(1750 words)Term Paper

Analysis of All Changes Great or Small Exploring Approaches to Change and Its Leadership Article by Higgs and Rowland

The change referred to in this context includes a broad array of topics. From an individual perspective, the change may be a new behavior. From a business perspective, the change may be a new business process and/or new technology. From a societal perspective, the change may be a new public policy or the passing of new legislation. Successful change, however, requires more than a new process, technology or public policy. Successful change may require the engagement and participation of the people involved. Change management provides a framework for managing the people side of these changes. The most recent research points to a combination of organizational change management tools and individual change management models for effecti...
13 Pages(3250 words)Article

Analysis of a Management Practitioner Article Using Relevant Organisational Behaviour Theory

The culture of an organization is its integral part and the behaviors and attitudes of its people are responsible for the organization’s success or failure. The ingredients of change are coordination, commitment, and competencies. Coordination is the key to improving the organization. Commitment is the key to concerted effort to achieve the vision that magnifies the desired improvement. Competencies are the skills that are required to bring about the change.

While there are many well defined and understood theories of strategic management there are few for cultural and management practices. The managers often fall back on these theories to emulate them in practice.

According to Nelson and Winter (1982)...
11 Pages(2750 words)Term Paper

Article Analysis of 11 Ways to Critique an Article by Mike Metcalfe

The systems for thinking perspective and T.O.P perspective styles have been chosen as this article needs to have an explicitly straight conclusion. Moreover, the ethical issues concerning the organization have also not been given adequate treatment in the article which makes it a one-sided communication on the part of the author. Also, certain other critical issues concerning the article involve lack of adequate clarification on the part of the author regarding various key issues such as what would be the resultant consequences in case of failure on the part of the employee / prospective employee to adhere to the rules and regulations governing the protection of privacy of the organizational data. Are there any legal obligations i...
11 Pages(2750 words)Assignment

The Article Architecture in Everyday Life Written by the Author Dell Upton

...Architecture and the Everyday In his article “Architecture in Everyday Life,” Dell Upton defines the concept of ‘everyday life’ as an entity of the ‘other’, as something that can only be defined by what it is not. In making this definition, he points out how this definition can be applied to the concept of 21st century architecture in terms of those areas that connect the spaces but yet are not provided with names as such to define them. In recent years, the concept of ‘everyday life in architecture’ has come to refer to architecture that somehow escapes the commodification/consumption paradigm of contemporary culture and yet remains entirely in keeping with the needs of the client. In other words, everyday architecture is defined...
8 Pages(2000 words)Article

Analysis of Negative Equity Spells End of US Love of Homeownership Article by Dominic Rushe

...” (p.31). Since the housing market in the US is undergoing a period of depression even now, an analysis of the article with regard to aggregate demand and aggregate supply of the housing market is discussed in this report. Apart from this all other relevant areas of macro economics will be discussed with a summary at the end of the report as a conclusion will be added. 3.1 Macroeconomics According to Gwartney et al, (2006) macroeconomics is a part of the study of economics which centers on the aggregate economic system. Macroeconomics examines the economy at a national/global level and is related with the economy as a whole. According to Susan Wachter et al (2010), "Housing, which usually leads us out of recession and into recovery...
6 Pages(1500 words)Term Paper

Article Review and Reflection TopicHuman resouce

...Purpose of Study/Problem Statement Zhao & Yuan & Guo (2011) in their paper “Brief Analysis on Human Resources Management in Modem Private Enterprises” have presented a thesis on how the concept of Human Resource is different from the traditional notion of personnel department and that the proper management of human resources plays a very important role in bringing success to the business in the long run. Recently, in China, private enterprises are providing a big boost to the economic development of the country. However, the hypothesis made in this paper points out that the lack of efficient management and overseeing by the human resources lead to slowdown of several private enterprises that had grown successfully at the initial... of...
9 Pages(2250 words)Literature review

Analysis of Article about Global Warming

... written by Dr. Susan Martin. What the text adds to what I know about my topic and the new information I did learn. The text has added many new things on the information I had about the topic, global warming. I never associated migration with global warming. I did learn that most induced migrations are environmental and this results into mass emergency movements and require large scale assistance from humanitarian. I was not very much aware of the need to conserve the environment, but after reading this article, I have now learned that we need to conserve the environment due to the adverse negative effects climate change imposes on people. Through this article, I understand much better the ways through which environmental change may...
6 Pages(1500 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Assignment on topic Article for FREE!

Contact Us